How much does a 3.00 to 4.99ct D SI1 lab grown emerald diamond cost?

As of October 2026, 3.00 to 4.99ct D SI1 lab grown emerald diamonds typically cost $441 USD to $3,656 USD, with a median price of $1,250 USD. There are currently 62 diamonds matching this specification available across retailers.

Where can I find the best price on a D SI1 emerald diamond?

About 21% of these diamonds are available at multiple retailers, with an average price spread of 114%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 62 lab grown emerald diamonds with D color and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $441 USD to $3,656 USD, with a median of $1,250 USD. At least 35 retailers stock this exact specification, and 21% of the stones appear at more than one of them, with an average price spread of 114%. Half of all listings fall between $229 USD and $666 USD per carat. The same specification in natural form lists at a median of about $18,917 USD per carat. Over the last 30 days the median price moved +12.3% and the number of listings moved +5.3%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Emerald lab grown stones in the index: 451 USD per carat, -8.3% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

Lowest Price

$311 USD

Highest Price

$6,518 USD

Average Price

$1,681 USD

Market Intelligence

Retailers Selling

Cross Retailer %

20.5%

Price Spread

113.5%

30-Day Price Trend

+12.3%

30-Day Supply Change

+5.3%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$384/ct

10th Percentile

$149

Median

$384

90th Percentile

$1,156

Score Distribution

173 diamonds scored across 4 quality tiers

Excellent

27 (15.6%)

Very Good

19 (11.0%)

Good

25 (14.5%)

Average

102 (59.0%)

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1